A prospective randomised controlled trial evaluating prophylactic Floseal, a gelatin and thrombin-based haemostatic matrix, in postoperative drain output and blood transfusion in transforaminal lumbar interbody fusion surgery. - Ng EP; Tung KL; Yip SL; Tse MS; Kwok TK; Wong KK (European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society, 2023)